DOCSLIB.ORG

Birds of Jim-Swan

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Birds of Jim-Swan The Jim-Swan area includes wetland, forest and shrub lowland habitat and Upland Game Birds (Phasianidae) Birds in this family are nonmigratory and Regularly Observed : Rarely Observed : surrounding wooded uplands and cliffs. This diversity of habitat supports a generally occupy woodlands & brush (grouse) or alpine/subalpine habitat ___ Bonaparte’s Gull ___ Glaucous-winged Gull rich diversity of birds. Family groups and species are listed in American (ptarmigan). ___ Mew Gull Ornithological Union order and are classed as either “Regularly” or “Rarely” Regularly Observed : ___ Herring Gull observed based on historical observations and expected seasonal abundance. ___ Ruffed Grouse ___ Arctic Tern Most species listed are migratory and leave the area in the fall and return in ___ Spruce Grouse April, May and early June. Generally, the best birding is in spring and early ___ Willow Ptarmigan Owls (Strigidae) Nocturnal raptors (owls) are primarily active at night. summer when birds vocalize often to establish territories, and sport their Although most are fairly common they are rarely observed. The Short- most striking plumage. Birds are generally more secretive as they progress to Diurnal Raptors (Accipitridae and Falconidae) These birds of prey are active eared Owl is the only true migrant. Other species may undergo short nesting and rearing young. Whatever the season, birds are engaged in life- during the day. Most are migratory; some Bald Eagles and Northern Goshawks seasonal movements depending on food availability. Listen for owls sustaining activity; be careful not to disrupt their activity. Take binoculars stay all year. Raptors have a wide variety of habitat preferences; Golden Eagles from February to April when they are announcing nesting territories. and your choice of field guide and enjoy the birds of Jim-Swan, a designated prefer the cliffs and alpine habitat above the wetlands while harriers prefer Regularly Observed: Rarely Observed : Important Bird Area. Report your sightings to Mat-Su Birders, a wild bird club, open marsh. ___ Great Horned Owl ___ Northern Hawk Owl at [email protected] , to help increase our knowledge of species Regularly Observed : Rarely Observed : ___ Great Gray Owl occurrence. Your contributions will lead to more comprehensive future ___ Osprey ___ Rough-legged Hawk ___ Short-eared Owl editions of this checklist! Jim-Swan is part of the Knik River Public Use Area, ___ Bald Eagle ___ Peregrine Falcon ___ Boreal Owl and is managed by the Alaska Department of Natural Resources. ___ Northern Harrier ___ Gyrfalcon ___ Northern Saw-whet Owl ___ Sharp-shinned Hawk The Checklist By Family Group ___ Northern Goshawk Kingfishers (Alcedinidae) The handsome Belted Kingfisher is regularly ___ Red-tailed Hawk observed, often perched near water or diving for small fish. They (Harlan’s subspecies) occasionally winter here if they have access to open water and food. Waterfowl (Anatidae) Ducks, swans and geese are migratory birds and are very ___ Golden Eagle ___ Belted Kingfisher commonly observed in the Jim-Swan wetlands. While many nest here, others ___ American Kestrel only rest and feed before continuing their migration. Waterfowl can be ___ Merlin Aaron Ernst Woodpeckers (Picidae) These small to medium sized birds occupy observed near shore if not disturbed; a spotting scope and/or canoe will make wooded areas throughout Jim-Swan year-round except for the viewing these beautiful birds even better. migratory Northern Flicker. Regularly Observed : Rarely Observed : Rails and Cranes ( Gruiformes) Sandhills Cranes are observed regularly in Jim- Regularly Observed: Rarely Observed: ___ Common Loon ___ Greater White-fronted Goose Swan; sometimes seen in large flocks during migration. ___ Downy Woodpecker ___ Three-toed Woodpecker ___ Pacific Loon ___ Snow Goose ___ Sandhill Crane ___ Hairy Woodpecker ___ Northern Flicker ___ Horned Grebe ___ Gadwall ___ Red-necked Grebe ___ Blue-winged Teal Shorebirds (Charadriidae, Scolopacidae) These small to medium sized wading ___ Tundra Swan ___ Redhead birds occur in small numbers relative to more coastal areas. They are most easily Flycatchers ( Tyrannidae) Flycatchers are very small migratory birds ___ Trumpeter Swan ___ Long-tailed Duck observed during migration when feeding near shorelines, mudflats and wetlands. generally dull in color and often most easily identified by their call. ___ Canada Goose ___ Surf Scoter A few species such as yellowlegs and Wilson’s snipe nest here and are often Regularly Observed : Rarely Observed : ___ Northern Pintail ___ White-winged Scoter heard more than seen. ___ Alder Flycatcher ___ Western Wood-Pewee ___ Mallard ___ Red-breasted Merganser Regularly Observed : Rarely Observed : ___ Olive-sided Flycatcher* ___ Hammond’s Flycatcher ___ American Wigeon ___ Greater Yellowlegs ___ American Golden-Plover ___ Northern Shoveler ___ Lesser Yellowlegs ___ Semipalmated Plover Shrikes (Laniidae) The Northern Shrike is a medium-sized predatory ___ Green-winged Teal ___ Solitary Sandpiper ___ Whimbrel bird that is rarely observed in Jim-Swan. Migratory but some individuals ___ Canvasback ___ Spotted Sandpiper ___ Hudsonian Godwit spend the winter in this general region. Occupies diverse habitat. ___ Ring-necked Duck ___ Wilson’s Snipe ___ Semipalmated Sandpiper ___ Northern Shrike ___ Greater Scaup ___ Red-necked Phalarope ___ Pectoral Sandpiper ___ Lesser Scaup ___ Long-billed Dowitcher Jays & Ravens (Corvidae) Members of this family are perhaps our most ___ Bufflehead ___ Short-billed Dowitcher noticeable birds of all - smart, gregarious and comfortable in just about ___ Common Goldeneye any habitat. All three species are regularly observed year-round. ___ Barrow’s Goldeneye Gulls & Terns (Laridae) These are medium to large, migratory sea birds with ___ Gray Jay ___ Common Merganser long wings and overall white to gray body color. The Arctic Tern flies to ___ Black-billed Magpie Antarctic each year – an approximate round trip flight of 25,000 miles ___ Common Raven makes this the world’s greatest migrant! Swallows (Hirundinidae) Graceful and swift, swallows are migratory birds that spend their summers raising families on Alaska’s abundant insects! Wood Warblers (Parulidae) These birds are small, active migratory songbirds. Regularly Observed: Rarely Observed : Many are unusually colorful. Their preferred habitat of thick foliage means ___ Tree Swallow ___ Bank Swallow they are heard far more than seen – frustrating for even patient birders! IM WAN ___ Violet-green Swallow ___ Cliff Swallow Regularly Observed : Rarely Observed : The Birds of J -S ___ Orange-crowned Warbler ___ Blackpoll Warbler* A Checklist Chickadees (Paridae) Chickadees are regularly ___ Yellow Warbler observed, very small, year-round residents in any ___ Yellow-rumped Warbler wooded area. They keep us company even on the ___ Townsend’s Warbler* coldest winter days! ___ Northern Waterthrush ___ Black-capped Chickadee ___ Wilson’s Warbler ___ Boreal Chickadee Sparrows (Emberizidae) Beautiful varied songs make up for unremarkable Nuthatches (Sittidae) The Red-breasted Nuthatch is heard more than plumage. Most are migratory; some White-Crowned sparrows and Dark-eyed seen and is regularly observed all year in wooded areas. juncos winter. Habitat preferences vary. ©Doug Lloyd ___ Red-breasted Nuthatch Regularly Observed : Rarely Observed : __ Savannah Sparrow __ Lapland Longspur Creeper (Certhiidae) The small Brown Creeper perfectly blends with the __ Fox Sparrow __ Snow Bunting tree trunks where it feeds and nests. Heard more than seen, it is regularly __ Song Sparrow observed all year. __ Lincoln’s Sparrow ___ Brown Creeper __ White-crowned Sparrow __ Golden-crowned Sparrow Dipper (Cinclidae) The American Dipper is an amazing bird that swims under __ Dark-eyed Junco swift water foraging for aquatic insects. A year-round resident, the dipper is rarely observed. Sings a beautiful warbling song. Blackbirds (Icteridae ) Blackbirds are migratory songbirds. They generally ___ American Dipper prefer open shrubby areas, wetlands and forest edges. Regularly Observed Rarely Observed Kinglets (Regulidae) These tiny active birds occupy wooded areas. The ruby- ___ Rusty Blackbird* ___ Red-winged Blackbird crowned’s song is unusually lively and loud for one so small, and is frequently heard. The ruby-crowned is migratory; the golden-crowned is generally a year- Finches (Fringillidae) Most finches are fairly common but nomadic and round resident. irruptive; some years seen in large numbers seasonally, other years seen rarely. Regularly Observed : Rarely Observed: Generally heard calling while in flight, usually in flocks. ___ Ruby-crowned Kinglet ___ Golden-crowned Kinglet Regularly Observed : Rarely Observed : __ Pine Grosbeak __ White-winged Crossbill Thrushes (Turdidae) Migratory birds of wooded areas, thrushes are the __ Common Redpoll favorites of many birders in Jim-Swan for their extraordinarily lovely songs. __ Pine Siskin Regularly Observed : Rarely Observed: ___ Swainson’s Thrush ___ Townsend’s Solitaire * Species’ conservation status is of concern. ___ Hermit Thrush Reference Sources: Historical and current field reports; Birds of ___ American Robin South/Central Matanuska-Susitna Borough (A Checklist) by Mat-Su Birders; ___ Varied Thrush Field Guide to Birding in Anchorage by R.L. Scher; The Sibley Guide to Bird Life & Behavior, and, The Sibley Guide to Birds by David Allen Sibley; A Pipits (Motacillidae) Rarely observed in Jim-Swan, the American Pipit is a Birders Guide
Load more

Recommended publications
  • True Shrikes), Including 31 Specieswithin Genera Are Coveredin Singlepage Overviews.Line Lanius, Coruinella and Eurocephalus
    Books SHRIKES. Norbert Lefranc. 1997. Yale University Some species have bright rufous or sandy caps Press, New Haven, Connecticut. Hard cover, 192 and backs. A few, such as the Long-tailedShrike, pp. $35.00 U.S. have strikinggeographic plumage variations. Some shrikesare as small as House Sparrows. The recentflood of world-wideidentification guides for specific groups of birds, such as seabirds, In 35 pages of introductorymaterial, the author waterfowl and shorebirds, has now reached presents informationon: taxonomy,overviews of passerine groupings, and the treatment has the genera, and a brief guide to the features of the expanded to include life history information.This species accounts. The overview of the genus is a welcome addition, as many bird enthusiasts Laniuscovers: names; morphology,plumages and have expanded their interests, and wish to learn molts; origins, present distribution,migration 'and more about the birds they see. Many of these wintering areas; habitat; social organization and guides are being written in Europe and cover general behavior;food habits,larders and foraging groupswhich occur primarilyin the Old World. behavior; nests, eggs and breeding behavior; population dynamics; population changes and Shrikes covers the three genera of the family presumedcauses; and conservation.The othertwo Laniidae(true shrikes), including 31 specieswithin genera are coveredin singlepage overviews.Line Lanius, Coruinella and Eurocephalus. Twenty- drawings in the introduction supplerbent the color sevenof thesespecies are in the firstgenus, whose plates. name is the Latin word for butcher, perhaps referringto their habit of hangingprey on spines. Species accounts average three pages (range 1- 9), and include a clear range map (1/4 to 1 page), Scientistsbelieve that the family Laniidae evolved identification details, measurements, distribution in Australia as part of a great radiation that and status, molt, voice, habitat, habits, food, produced the corvids, a number of Australian breeding and references.
    [Show full text]
  • Bird Species Checklist
    6 7 8 1 COMMON NAME Sp Su Fa Wi COMMON NAME Sp Su Fa Wi Bank Swallow R White-throated Sparrow R R R Bird Species Barn Swallow C C U O Vesper Sparrow O O Cliff Swallow R R R Savannah Sparrow C C U Song Sparrow C C C C Checklist Chickadees, Nuthataches, Wrens Lincoln’s Sparrow R U R Black-capped Chickadee C C C C Swamp Sparrow O O O Chestnut-backed Chickadee O O O Spotted Towhee C C C C Bushtit C C C C Black-headed Grosbeak C C R Red-breasted Nuthatch C C C C Lazuli Bunting C C R White-breasted Nuthatch U U U U Blackbirds, Meadowlarks, Orioles Brown Creeper U U U U Yellow-headed Blackbird R R O House Wren U U R Western Meadowlark R O R Pacific Wren R R R Bullock’s Oriole U U Marsh Wren R R R U Red-winged Blackbird C C U U Bewick’s Wren C C C C Brown-headed Cowbird C C O Kinglets, Thrushes, Brewer’s Blackbird R R R R Starlings, Waxwings Finches, Old World Sparrows Golden-crowned Kinglet R R R Evening Grosbeak R R R Ruby-crowned Kinglet U R U Common Yellowthroat House Finch C C C C Photo by Dan Pancamo, Wikimedia Commons Western Bluebird O O O Purple Finch U U O R Swainson’s Thrush U C U Red Crossbill O O O O Hermit Thrush R R To Coast Jackson Bottom is 6 Miles South of Exit 57.
    [Show full text]
  • Free Download! the Trumpeter Swan
    G3647 The Trumpeter Swan by Sumner Matteson, Scott Craven and Donna Compton Snow-white Trumpeter Swans present a truly spectac- Swans of the Midwest ular sight. With a wingspan of more than 7 feet and a rumpeter Swans, along with ducks and geese, belong height of about 4 feet, the Trumpeter Swan (Cygnus buc- to the avian Order Anseriformes, Family Anatidae. cinator) ranks as the largest native waterfowl species in T Trumpeters have broad, flat bills with fine tooth-like North America. serrations along the edges which allow them to strain Because the Trumpeter Swan disappeared as a breed- aquatic plants and water. The birds’ long necks and ing bird in the Midwest, several states have launched strong feet allow them to uproot plants in water up to 4 restoration programs to reintroduce it to the region. This feet deep. publication will provide you with background informa- Most Trumpeter Swans weigh 21–30 pounds, tion on the Trumpeter Swan’s status and life history, and although some males exceed the average weight. The on restoration efforts being conducted in the upper male is called a cob; the female is called a pen; and a swan Midwest. in its first year is called a cygnet or juve- nile. The Trumpeter is often con- fused with the far more common Tundra Swan (formerly Whistling Swan, Cygnus columbianus), the only other native swan found routinely in North America. Tundra Swans can be seen in the upper Trumpeter Swan Midwest only during spring and fall migration. You can distinguish between the two native species most accurately by listening to their calls.
    [Show full text]
  • Arctic National Wildlife Refuge
    FACT SHEET Arctic National Wildlife Refuge ARCTIC BIRDS IN YOUR STATE The Arctic National Wildlife Refuge is a place unlike any Alabama - Ruby-crowned Kinglet Alaska - Redpoll other in the world. The Alaskan refuge, often referred to Arizona - Fox Sparrow as “America’s Serengeti,” is a remote sanctuary for diverse Arkansas - Mallard California - Snow Goose populations of migratory birds, fish, mammals, and marine Colorado - Bohemian Waxwing Connecticut - Greater Scaup life. The Refuge spans an area roughly the size of South Delaware - Black-bellied Plover Carolina and boasts snow-capped mountains, arctic tundra, Florida - Peregrine Falcon Georgia - Gray-checked Thrush foothills, wetlands, boreal forest, and fragile coastal plains. Hawaii - Wandering Tattler America’s Arctic Refuge was set aside as a safe haven for Idaho - Short-eared Owl Illinois - Northern Flicker wildlife in 1960, and it has remained wild in its more than Indiana - Dark-eyed Junco 50 years as a Refuge. Iowa - Sharp-shinned Hawk Kansas - Smith’s Longspur Kentucky – Merlin AMERICA’S LAST GREAT WILDERNESS Louisiana - Long-billed Dowitcher Maine - Least Sandpiper Maryland - Tundra Swan The Arctic Refuge is often mischaracterized as a blank, frozen void Massachusetts - Golden Plover of uninhabited tundra. Although winter frequently coats the Arc- Michigan - Long-tail Duck tic with snow and freezes the ground, it gives way to lush, vibrant Minnesota - Snowy Owl Mississippi – Northern Waterthrush growth in warmer months. In fact, the Refuge’s unparalleled diver- Missouri - American Pipit sity makes it the most biologically productive habitat in the North. Montana - Golden Eagle Nebraska - Wilson’s Warbler Landscape Nevada - Green-winged Teal The majestic Brooks Range rises 9,000 feet, providing sharp contrast New Hampshire - Dunlin New Jersey – Canvasback to the flat, wetlands-rich coastal plains at its feet.
    [Show full text]
  • Field Checklist (PDF)
    Surf Scoter Marbled Godwit OWLS (Strigidae) Common Raven White-winged Scoter Ruddy Turnstone Eastern Screech Owl CHICKADEES (Paridae) Common Goldeneye Red Knot Great Horned Owl Black-capped Chickadee Barrow’s Goldeneye Sanderling Snowy Owl Boreal Chickadee Bufflehead Semipalmated Sandpiper Northern Hawk-Owl Tufted Titmouse Hooded Merganser Western Sandpiper Barred Owl NUTHATCHES (Sittidae) Common Merganser Least Sandpiper Great Gray Owl Red-breasted Nuthatch Red-breasted Merganser White-rumped Sandpiper Long-eared Owl White-breasted Nuthatch Ruddy Duck Baird’s Sandpiper Short-eared Owl CREEPERS (Certhiidae) VULTURES (Cathartidae) Pectoral Sandpiper Northern Saw-Whet Owl Brown Creeper Turkey Vulture Purple Sandpiper NIGHTJARS (Caprimulgidae) WRENS (Troglodytidae) HAWKS & EAGLES (Accipitridae) Dunlin Common Nighthawk Carolina Wren Osprey Stilt Sandpiper Whip-poor-will House Wren Bald Eagle Buff-breasted Sandpiper SWIFTS (Apodidae) Winter Wren Northern Harrier Ruff Chimney Swift Marsh Wren Sharp-shinned Hawk Short-billed Dowitcher HUMMINGBIRDS (Trochilidae) THRUSHES (Muscicapidae) Cooper’s Hawk Wilson’s Snipe Ruby-throated Hummingbird Golden-crowned Kinglet Northern Goshawk American Woodcock KINGFISHERS (Alcedinidae) Ruby-crowned Kinglet Red-shouldered Hawk Wilson’s Phalarope Belted Kingfisher Blue-gray Gnatcatcher Broad-winged Hawk Red-necked Phalarope WOODPECKERS (Picidae) Eastern Bluebird Red-tailed Hawk Red Phalarope Red-headed Woodpecker Veery Rough-legged Hawk GULLS & TERNS (Laridae) Yellow-bellied Sapsucker Gray-cheeked Thrush Golden
    [Show full text]
  • Trumpeter Swan Habitat Conservation Strategy
    Trumpeter Swan Habitat Conservation Strategy Photo Credit: Northwest Territories Version 6 October 28, 2014 Rick Bonar Table of Contents Preface ........................................................................................................................................................ 3 Summary ..................................................................................................................................................... 4 Introduction ................................................................................................................................................ 5 Conservation Status ..................................................................................................................................... 7 Population Status ........................................................................................................................................ 8 FMA Observations ....................................................................................................................................... 9 Limiting Factors ........................................................................................................................................... 9 Habitat Loss and Alteration ................................................................................................................................. 9 Human Disturbance ...........................................................................................................................................
    [Show full text]
  • SWANS in NORTH IDAHO Part 1 JANUARY MEETING Lisa Hardy
    Coeur d’Alene Chapter of the National Audubon Society www.cdaaudubon.org January 2010 VOLUME 19 ISSUE 5 Articles for the newsletters are welcome. Please submit to the editor, Shirley Sturts at: [email protected] by the 15th of each month. All submissions are subject to editing. Thank you and happy reading! SWANS IN NORTH IDAHO Part 1 JANUARY MEETING Lisa Hardy DATE: January 5 , Tuesday PLACE: Lutheran Church of the Swans are impressively Maste, 4800 North Ramsey large birds, yet their long TIME: 7:00 p.m. necks allow them to retain a SPEAKER: Kathy Cousins sense of elegance. Their Before her current position with all-white plumage makes Idaho Fish and Game, Kathy worked them symbols of purity. for the Research Corporation of the They remain loyal to their University of Hawaii. Her work involved both fresh water and marine mates. For these reasons, fish species, as well as sea turtles, swans are a wildlife icon, marine mammals and seabirds. and we look for them each PROGRAM: "Albatross" spring and fall as heralds of Albatross, or “tubenose birds", soar the changing seasons. with great ease over the ocean waves and can smell fish oil from 20 miles In March we will attempt to away. Come to the meeting to learn Trumpeter Swan time our swan field trip to more about these remarkable birds Photograph by Wayne Tree when the peak number of that live most of their lives at sea and birds are moving through have no fear of man. Idaho on their way north to their nesting grounds in Alaska.
    [Show full text]
  • Alpha Codes for 2168 Bird Species (And 113 Non-Species Taxa) in Accordance with the 62Nd AOU Supplement (2021), Sorted Taxonomically
    Four-letter (English Name) and Six-letter (Scientific Name) Alpha Codes for 2168 Bird Species (and 113 Non-Species Taxa) in accordance with the 62nd AOU Supplement (2021), sorted taxonomically Prepared by Peter Pyle and David F. DeSante The Institute for Bird Populations www.birdpop.org ENGLISH NAME 4-LETTER CODE SCIENTIFIC NAME 6-LETTER CODE Highland Tinamou HITI Nothocercus bonapartei NOTBON Great Tinamou GRTI Tinamus major TINMAJ Little Tinamou LITI Crypturellus soui CRYSOU Thicket Tinamou THTI Crypturellus cinnamomeus CRYCIN Slaty-breasted Tinamou SBTI Crypturellus boucardi CRYBOU Choco Tinamou CHTI Crypturellus kerriae CRYKER White-faced Whistling-Duck WFWD Dendrocygna viduata DENVID Black-bellied Whistling-Duck BBWD Dendrocygna autumnalis DENAUT West Indian Whistling-Duck WIWD Dendrocygna arborea DENARB Fulvous Whistling-Duck FUWD Dendrocygna bicolor DENBIC Emperor Goose EMGO Anser canagicus ANSCAN Snow Goose SNGO Anser caerulescens ANSCAE + Lesser Snow Goose White-morph LSGW Anser caerulescens caerulescens ANSCCA + Lesser Snow Goose Intermediate-morph LSGI Anser caerulescens caerulescens ANSCCA + Lesser Snow Goose Blue-morph LSGB Anser caerulescens caerulescens ANSCCA + Greater Snow Goose White-morph GSGW Anser caerulescens atlantica ANSCAT + Greater Snow Goose Intermediate-morph GSGI Anser caerulescens atlantica ANSCAT + Greater Snow Goose Blue-morph GSGB Anser caerulescens atlantica ANSCAT + Snow X Ross's Goose Hybrid SRGH Anser caerulescens x rossii ANSCAR + Snow/Ross's Goose SRGO Anser caerulescens/rossii ANSCRO Ross's Goose
    [Show full text]
  • TUNDRA SWAN (Cygnus Columbianus)
    TUNDRA SWAN (Cygnus columbianus) Associated Species: Other bird species that may respond similarly to habitat components used by the Tundra Swan are: American White Pelican, Trumpeter Swan, Mallard, Gadwall, Wigeon, Redhead, Canvasback, Scaup spp., and Canada Geese. Distribution: Breeding occurs on arctic wetlands while wintering occurs on estuaries along the east and west coasts. The Tundra Swans utilize traditional migratory routes inland across the continent. Interior stopovers areas are primarily in the Great Basin, upper Mississippi River Valley, southern Ontario, and Susquehanna River Valley in southeast Pennsylvania. Breeding range in the Arctic is from the Aleutian Islands across the northern tundra regions of Alaska, Yukon, Northwest Territories, northeast Manitoba, northern Ontario, and northwest Quebec. The birds that stop at the Refuge are considered part of the Western Population of Tundra Swans, while birds traveling to the east coast of the U.S. are considered part of the Eastern Population. The average fall peak Tundra Swan population in Utah is 24,746 (1990-01) and occurs between November 26 and December 2. The Refuge average peak is 13,111 (1990-01) and occurs between November 8 and December 2 (Refuge records). More than 99 percent of Utah’s migrant Tundra Swans utilize the freshwater wetland habitats in the Bear River Bay of the Great Salt Lake, which includes the Refuge. Based on mid-winter indices, northern Utah may host up to 30 percent of the Western Population of Tundra Swans at any one time, with the Refuge accounting for about one-half of that population (15 percent). Sporadic counts for the spring (1992-2002) show an average peak for the Refuge of 3,318 between February 15 and March 22.
    [Show full text]
  • Speed of Spring Migration of Tundra Swans Cygnus Columbianus in Accordance with Income Or Capital Breeding Strategy?
    Speed of spring migration of Tundra Swans Cygnus columbianus in accordance with income or capital breeding strategy? Bart A. Nolet1 Nolet B.A. 2006. Speed of spring migration of Tundra Swans Cygnus columbianus in accordance with income or capital breeding strategy? Ardea 94(3): 579–591. Large migratory birds may bring along stores in order to survive adverse conditions and produce a clutch upon arrival (‘capital breeders’) or they may acquire all the necessary resources on the breeding grounds (‘income breeders’). Whether birds are capital- or income-breeders may depend on the distance between the last stopover site and the breeding grounds and the length of the summer season. The degree of capital- breeding may therefore differ among flyway populations of the same species. I used migration speed as a proxy for the degree of capital- breeding, and compared the observed migration speeds of satellite- tracked Tundra Swans Cygnus columbianus from all four main flyway populations with those predicted by an allometric model for 6-kg water- fowl. Average overall spring migration speed of Tundra Swans was 52.2 km d–1, close to that predicted under a capital-breeding strategy (i.e. carrying the stores for the whole clutch and allowing for 8 days of star- vation). This migration speed was in accordance with the speed at which the ice retreats in spring. However, the energy stores for clutch formation and survival on the breeding grounds may be primarily put on at the last stopover. Tundra Swans (‘Whistling Swans’) in the Nearctic, and especially in the Western Nearctic, make use of the rapid advancement of spring on their last leg and accelerate their migration speed accordingly, and so probably rely on income-breeding.
    [Show full text]
  • NORTHERN SHRIKE-TIT CRESTED SHRIKE-TIT Falcunculus (Frontatus) Whitei
    Threatened Species of the Northern Territory NORTHERN SHRIKE-TIT CRESTED SHRIKE-TIT Falcunculus (frontatus) whitei Conservation status Australia: Vulnerable Northern Territory: Near Threatened Photo: T. Collins Description The northern shrike-tit is a distinctive medium-sized bird. It has a dull green back and wings, yellow belly and boldly marked black and white head, with a small black crest. Its bill is unusually deep, strong and hooked. Distribution This taxon forms part of a superspecies of three geographically isolated populations, in eastern and south-eastern Australia, south-western Australia and northern Australia. These taxa are variously accorded subspecific (Christidis and Boles 1994, 2008) or full specific (Schodde and Known locations of the northern shrike-tit Mason 1999) status. Molecular genetics analyses are required to resolve the taxonomy within the to near Borroloola. More recent records in the superspecies. Northern Territory (NT) expand our knowledge of them here and include locations in north east Until relatively recently there were remarkably Arnhem Land to Kalkarindgi (semi-arid Victoria few records of the northern shrike-tit (Robinson River District). The most frequent recent records and Woinarski 1992), scattered between the are from the Sturt Plateau and from the south-west Kimberley (Western Australia) east Maningrida area (R. Noske pers. comm.), though For more information visit www.denr.nt.gov.au 2 this reflects greater research effort in these Northern shrike-tits use calls to maintain pairs areas. and territories, particularly during the breeding season. These calls, though not loud, are The species has not been relocated in the distinctive and provide the best means of Borroloola area since it was first recorded there detecting the subspecies at a location (Ward in 1913.
    [Show full text]
  • Swanslake Eolaof
    OUR LAKE EOLA SWANS ARE ON THE careFUL DIETS SWANSLAKE EOLA OF NO BREAD OR POPCORN Feeding them with the wrong food can make them sick. Please use one of the three feeders in the park to purchase the correct food for the swans. Feeders are located near the playground and near the Ting Pavilion. OTHER APPROVED FOODS: · Lettuce · Any loose field greens · Spinach leaves · Duck pellet food that can be bought at any pet/feed store THE SWANS OF LAKE EOLA City of Orlando Families, Parks and Recreation Lake Eola Park 195 N. Rosalind Avenue A guide describing the different Orlando, Florida 32801 swan breeds at Lake Eola 407-246-4485 cityoforlando.net/eola find us on facebook TrumpeTER SWANS WHOOPER SWANS BLACK NECK SWAN (Cygnus buccinator) Trumpeter Swans are indigenous (Cygnus Cygnus) Whooper Swans are the National Bird (Cygnus melancocoryphus) Black Neck Swans are native to North America and are the largest Swan Species. of Finland and can be found wintering in Great Britain, to South America. Southern hemisphere swans have A unique characteristic is their number of feathers – Northern Europe, and Asia Minor. The yellow coloring black coloring while Northern hemisphere swans are 25,000. This is the most feathers of any bird species. extends past their nostrils which helps identify them white in color. The pink feet of Black Neck swans are set They are identified by their coal black beaks. from the Bewick swans (a type of Tundra Swan). Most further back making it very awkward for them to walk on swans usually mate for life, but the Whooper Swans have land.
    [Show full text]